package com.sky.service.impl;

import com.fasterxml.jackson.databind.util.BeanUtil;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.OrdersSubmitDTO;
import com.sky.entity.AddressBook;
import com.sky.entity.OrderDetail;
import com.sky.entity.Orders;
import com.sky.entity.ShoppingCart;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.AddressBookMapper;
import com.sky.mapper.OrderDetailMapper;
import com.sky.mapper.OrderMapper;
import com.sky.mapper.ShoppingCartMapper;
import com.sky.service.OrderService;
import com.sky.vo.OrderSubmitVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;

@Service
public class OrderServiceImpl implements OrderService {
    @Autowired
    private AddressBookMapper addressBookMapper;

    @Autowired
    private ShoppingCartMapper shoppingCartMapper;

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderDetailMapper orderDetailMapper;

    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {

        // 异常情况的处理（收货地址为空，超出配送范围，购物车为空)
        // 查出收货地址数据
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if (addressBook == null) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        // 查出购物车数据
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(BaseContext.getCurrentId());

        // 去查购物车的数据
        List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(shoppingCart);
        if (shoppingCartList == null || shoppingCartList.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        Orders order = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO, order);
        order.setAddress(addressBook.getDetail());
        order.setConsignee(addressBook.getConsignee());
        order.setPhone(addressBook.getPhone());
        order.setNumber(String.valueOf(System.currentTimeMillis()));
        order.setUserId(BaseContext.getCurrentId());
        order.setStatus(Orders.PENDING_PAYMENT);
        order.setPayStatus(Orders.UN_PAID);
        order.setOrderTime(LocalDateTime.now());
        orderMapper.insert(order);
        List<OrderDetail> orderDetailList = new ArrayList<>();
        for (ShoppingCart cart : shoppingCartList) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart, orderDetail);
            orderDetail.setOrderId(order.getId());
            orderDetailList.add(orderDetail);
        }
        // 明细表插入数据
        orderDetailMapper.insertBatch(orderDetailList);
        // todo  清空购物车
        shoppingCartMapper.deleteByUserId(shoppingCart);
        OrderSubmitVO orderSubmitVO = new OrderSubmitVO();
        orderSubmitVO.setOrderAmount(order.getAmount());
        orderSubmitVO.setOrderNumber(order.getNumber());
        orderSubmitVO.setOrderTime(order.getOrderTime());
        orderSubmitVO.setId(order.getId());
      //  return null;
        return orderSubmitVO;
    }
}
